Patents by Inventor Maxime Vignasse

Maxime Vignasse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Clock distribution scheme
    Patent number: 8629715
    Abstract: An apparatus for propagating local oscillator signals in a circuit, the apparatus comprising two pairs of lines carrying respectively differential in-phase and quadrature signals. The lines are arranged such that in at least one region along their length one of each pair of lines crosses the other of the pair to create a twist. The twist(s) in each respective pair of lines is offset from the twist(s) in the other pair of lines such that the portion of their length over which the in-phase lines magnetically couple to the quadrature lines with a positive coupling coefficient is substantially equal to the portion of their length over which the in-phase lines magnetically couple to the quadrature lines with a negative coupling coefficient.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: January 14, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Giuseppe Gramegna, Pasquale Lamanna, Maxime Vignasse